公开(公告)号：US20200022179A1

公开(公告)日：2020-01-16

申请号：US16580144

申请日：2019-09-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhe Liu ,  Chaobin Yang ,  Yong Wang ,  Quanzhong Gao ,  David Jean-Marie Mazzarese ,  Guohua Zhou ,  Hao Tang ,  Wei Chen ,  Liwen Zhang

IPC: H04W72/12 ,  H04W48/16 ,  H04W76/15 ,  H04W76/11

Abstract: A wireless communication system and method, the method being performed by a base station, and including receiving a system message on a downlink carrier, where the system message includes uplink carrier configuration information and preamble transmission configuration information, the uplink carrier configuration information indicates a plurality of uplink carriers, and the preamble transmission configuration information indicates a transmission configuration of a radio access preamble, sending, based on the transmission configuration of the radio access preamble, the radio access preamble on an uplink carrier of the plurality of the uplink carriers, and detecting, based on identification information of the uplink carrier, control information of a radio access response message on the downlink carrier.

公开(公告)号：US11277785B2

公开(公告)日：2022-03-15

申请号：US16715734

申请日：2019-12-16

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Chaobin Yang ,  Yong Wang ,  Quanzhong Gao ,  Wei Chen ,  Liwen Zhang ,  Xiaojun Zheng ,  Bin Xiong ,  Shuai Chen

IPC: H04W48/12 ,  H04W72/04 ,  H04W24/10 ,  H04W74/08 ,  H04W56/00

Abstract: Embodiments of this application relate to the field of wireless communications technologies, and provide an access method, a switch method, and an apparatus. The access method includes: receiving, by a terminal, a system message via a downlink carrier, where the system message includes information used to indicate a frequency channel number of a second uplink carrier; and initiating, by the terminal, random access via the second uplink carrier, where a frequency channel number of the downlink carrier belongs to a first frequency band, and a frequency channel number of the second uplink carrier belongs to a second frequency band.

公开(公告)号：US11252755B2

公开(公告)日：2022-02-15

申请号：US16713588

申请日：2019-12-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhe Liu ,  Chaobin Yang ,  Yong Wang ,  Quanzhong Gao ,  Hao Tang ,  Fan Wang ,  Guohua Zhou

IPC: H04W72/14 ,  H04W72/04 ,  H04W72/12 ,  H04L5/00 ,  H04L1/00 ,  H04L27/26

Abstract: An uplink resource grant method includes receiving, by a terminal, configuration information from a network device, where the configuration information includes information about a first uplink resource and information about a second uplink resource, and searching, by the terminal, a search space for a downlink control channel to obtain grant information. The search space includes a first control channel candidate set when the downlink control channel carries grant information of the first (or the second) uplink resource, and the search space includes a second control channel candidate set when the downlink control channel carries grant information of the second (or the first) uplink resource or grant information of a downlink resource. The first control channel candidate set is the same as the second control channel candidate set.